Lateral motion truck brake



Feb. 11, 1941. w. H. MUSSEY LATERAL MOTION TRUCK BRAKE Original FiledJune 20, 1938 5 Sheets-Sheet 1 BYCbI/IQSM m INVENTOa'R. d

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Feb. 11, 1941. w. H. MUSSEY LATERAL MOTION TRUCK 'BRAKE Original FiledJune 20, 1938 5 Sheets$heet 2 I INVENTOR. darn/2M sYCar x'gas. Mussg,lire ATTORNEY.

Feb. 11, 1941.

w. H. MUSSEY LATERAL MOTION TRUCK BRAKE Original Filed June 20, 1958 5Sheets-Sheet 3 Tun 1 w INVENTOR.

6. wfjgy, r/zc'a. k BYCb/Wa (KW/@5254 2044922 1 @WMfl/ymmmw Feb. 11,1941. w. H. MUSSEY LATERAL MOTI ON TRUCK BRAKE Original Filed Jun 20,1958 5 Sheets-Sheet 4 INVENTOR. fl/lfz/ase W BYCZz/wiz (495% ige cuzm'zATTORNEY Feb. 11, 1941.

w. H. MU SSEY LATERAL MOTION TRUCK BRAKE s Sheets-Sheet '5 OriginalFiled June 20, 1938 Mal/35a 2,231,841 PATENT OFFICE LATERAL MOTION TRUCKBRAKE i William H. Mussey, Chicago, 111., assignor to Pullman-StandardCar Manufacturing Company, Chicago, Ill., acorporation of DelawareOriginal application June 20, 1938, Serial No.v 214,673. Divided andthis application July l3,

1939, Serial No. 284,269

8 Claims. (01. 138-207) This application is a division of copendinapplication, Serial No. 214,673, filed June 20,

The invention relates to railway car trucks and, more particularly, totrucks of the pivotal type having wheel and axle assemblies laterallymovable relative to the truck frame independently of one another, and tothe provision of a brake rigging therefor.

The principal object of the invention is the provision of car truckshaving axle box mountings affording direct lateral motion of the wheelsand axles and brake-supporting structure movable coincidentally with thewheels and axles and having antifriction support on the truck.-

The foregoing and other objects are obtained by the structureillustrated in the accompanying drawings, in which Fig. 1 is a planview, partly in section, of a truck and brake rigging constructed inaccordance with one form of this invention;

Fig. 2 is a side elevation of the truck, partly in section, taken on theline 2-2 of Fig. l; I

Fig. 3 is a sectional view taken on the line 3--3 of Fig. 1 just insidethe truck side frame and showing the general details of the brakerigging;

Fig. 4 is'an end elevational view of the truck, partly in section,showing the disposition of the swing hanger permitting lateraldisplacementroi' the truck frame with respect to the journal boxes andthe pivotal connection of the brake rigging to. the journal boxeswhereby the brakes follow the movement of the wheels;

Fig. 5 is a transverse, sectional view taken on the line 5-5 of Fig. land illustrating the brakesupporting arrangement at the truck transom;

Fig. 6, is a general perspective view of all of the truck and brakeparts in their relative associated positions for assembly;

Fig. '7 is a general perspective view of a portion of a truck and brakearrangement constructed in accordance with another form of-the inventionin which the brake-supporting structure is carried in hangers on thetruck frame and provided with fulcrum points on the journal boxes asdistinguished from direct pivotal connections and having separate swinghanger bearings on the .journal box;

Fig.8 is a fragmentary elevational view of the brake-supportingarrangement with parts broken away better to illustrate the fulcrumsupport on the journal box and the hanger connection on the truck frame;

Fig. 9 is a fragmentary sectional view through the journal box taken onthe line 9-9 of Fig. 8

illustrating the separate swing hanger bearing on the journal box; and

Fig. 10 is a fragmentary sectional view through a brake riggingsupporting hanger assembly takenon the line Ill-l0 of Fig. 8.

In the drawings, I0 represents a car truck frame of any preferredconstruction but here illustrated as a rigid casting having integraltransom II and pedestals l2. The truck frame is supported on spacedwheel and axle assemblies 13 entered between the respective, associatedbox proper, and spaced pedestal ways I9 at opposite sides thereofproviding through openings 20 extending the full height of the box. Thepedestal-ways l9 are, of course, integral with the box through theconnecting walls 2| closing the openings 20 and are provided withflanges 22 between which the pedestals l2 engage the ways l9 and whichlimit the lateral swinging of the truck frame by contact with thepedestals. Swing hanger yokes I6 are supported on the journal boxes inbearings H. The swing hangers have a complemental bearing portion 23seated in the bearings l1 and depending legs 24 extending beneath thelevel of the bottom of the box through the openings 20, whereby they arefree to swing without frictional engagement with either the journal boxor pedestals and without interference. The swing hanger yokes at thebottom of the legs 24 have aligned openings 25 of generally invertedovate shape through which spring seat supporting members 26 are insertedto be carried thereby in interlocked relation therewith.

Spring seats 28 are rigidly secured to these members by means of bolts29 and are provided with vertically extended cylindrical walls 30 whichenter complemental guide openings 3| in the respective pedestals. Theopenings 3| form spring pockets in the pedestals and have spring capportions 32 which rest upon the multiple coil.

springs 33 seated in the spring seats 28 at opposite sides of thejournal boxes. The inte'rengaging relation of the pedestals and springseats maintains the springs 33, the spring seats 28 and the spring seatsupporting members 26 vertical at all times. Abutments 31 in .the springpockets 3| are adapted to engage the top edges of vertical walls 30 01'the spring seats 28 during deflection of springs 33 to limit compressionthereof to avoid compressing the springs solid.

The pedestalsl! are provided with hardened metal wear plates 36 securedthereto by welding and which engage the pedestal ways I! of the journalboxes during relative lateral swinging and vertical oscillations of theparts. It is to.

be understood that during the operation of the truck it is the wheel andaxle assemblies which move relative to the truck frame in response todeviations in the track, while the frame remains tive wheels.

from the respective cross members 45 by means substantially steady. Thismay readily be permitted due to the absorption of lateral shocksdirectly at the journal box rather than transmission through the truckframe and then absorbed. The truck is adapted to support 9, vehicle bodyby means of center plate 10 and pivot with respect thereto; but, for allpractical purposes, the lateral movement of the wheels and axlesafforded by the swing hangers is suflicient to permit negotiation of allcurves encountered in main line service without necessity for the truckswiveling.

Brake rigging is provided for co-operation with the wheels and supportedfrom the wheel and axle assemblies and the truck frame for movementcoincident with and in response to that of the wheels. The supportingmechanism for the brake rigging comprises generally U-shaped structures40 disposed in oppositely extending relation and each having bifurcatedleg members 4I straddling the truck side frames at the respectivepedestal positions and plvotally connected to the respective journalboxes at 42 by means of pins or bolts 43. The journal boxes I4 are eachconstructed with integral upstanding lugs 44 to which these leg membersare pivoted. These lugs are disposed at opposite sides of the swinghanger bearings I1, as best shown in Figs. 4 and 6. The spaced legmembers M of each U-shaped structure are connected across the truck bymeans of a tubular cross member 45 to which the leg members areintegrally secured by welding and braced by multiple web members 46 alsosecured between the respective bifurcated legs 41 by welding. Dependinglugs 41 are welded to the cross members for supporting the brakerigging, and a bracket 48 is secured to one cross member for connectionof a dead lever.

By means of the connection 42 to the journal boxes, the U-shapedsupporting structures are movable transversely with the wheel and axleassemblies I3, and the cross members 45 are supported on the truck framefor readily permitting lateral movement relative thereto in response toaxle movement. In this manner, the brake rigging is suspended inposition properly to engage the wheels at all times. The cross members45 are supported from the truck frame by antifriction rollers 49 mountedin brackets 50 on the transom II at each side of the truck for eachcross member The brackets 50 are illustrated as integral with the truckframe, but may be built; up if desired. The rollers 49 are disposed inthe brackets 50 with their axes preferably vertical,

whereby flanges 5'I confine the cross members 45 against the verticalreaction of the brake rigging when the brakes are applied. Bolts 52,secured in the brackets-50 by nuts 53, provide axles about which therollers 49 rotate.

The brake rigging comprises a pair of brake beams 54 of usualconstruction, each having heads 55 secured to the opposite ends thereofwith brake shoes 56 for engaging the respec- The brake beams aresuspended of hangers 51 taking the brake heads 55 and pivotally securedto the lugs 41 by pins 58, whereby the beams are positively moved withthe brakesupporting structure and thereby with the wheels. A dead lever59 is connected at its upper end with the bracket 48 on one of the crossmembers 45 by means of a link 60 providing a plurality of manualadjustments for wear through the various openings 6| for the anchoringpin 52. Intermediate its ends, the dead lever is operatlvely conw ennected at 63 to one of the brake beams and, at its lower ends, by meansof a bottom connection 54, is connected with a live brake lever 65 whichis connected intermediate its ends, as at 66, to the other brake beam.The live lever 65 is connected at its upper end with a pull rod 61 whichis operatively associated with brake operating mechanism (not shown)mounted either on the truck or a vehicle body and by means of which thebrakes function. A vehicle body may be pivotally associated with thetruck by means of a supporting center plate 10 secured to flanges 69 ofthe transom I I by means of rivets 68, and the combination of thispivotal association of the truck and car body with the lateral motion ofthe respective wheel and axle assemblies independently of one another,as afforded by the journal box swing hangers, provides an easy ridingmotion in negotiating curves and irregularities in the track and tendsto smooth out roughness of the track and roadbed without transmittingexcessive motion through the truck to the body.

The construction illustrated in Figs. 7 to 10, inclusive, aside from thebrake-rigging-supporting structure, differs from that above describedonly in the provision of a separate swing hanger bearing 1 on thejournal box H4. The bearing II1 is provided with depending lips I1Ioverhanging the opposite top edges-of the journal box to ensurestability of the bearing in resisting forces thereon at right angles tothe axis of the box considering the axis thereof as coincident with thatof the axle I I3. The bearing is held in place longitudinally of theaxis of the journal box in a manner hereinafter to appear.

The bifurcated legs I of the U-shaped brakesupporting structures I40 arenot directly pivoted to the journal boxes but are interlocked with theupstanding flanges I12 on the bearings II1, as at I13, at opposite sidesof the swing hangers I24 and the whole assembly seated betweenupstanding lugs I14 on the journal boxes, whereby the bearings II1 areprevented from moving relatively to the boxes; and the bifurcated armsI4I, with attached cross members I45 and the brake rigging supportedtherefrom, are caused to move with the journal boxes during everylateral movement of the wheels and axles. The brake rigging is of thesame type and supported from the cross members I45 in the same manner asdescribed in connection with the construction first referred to. Thebifurcated legs I4I are each welded to cross members I45, as in theconstruction previously described, and are provided with arcuate lowersurfaces I15 at the journal box position for rocking engagement thereon,and on their upper surfaces provide recesses I16 for engagement bydepending lugs I11 in the interlocking grooves I13 of the swing hangerbearings II1 to prevent sliding movement of the members I4I relative tothe journal boxes and bearings II1. It will be seen that as the truckframe moves vertically relatively to the wheels and journal boxes inresponse to springing movements, the members I4I will work about thelugs I11 as fuicrums and rock on the journal boxes, thereby to maintainthe brake rigging in proper relationto the wheels at all times. A

The U-shaped brake-supporting structures I40 are supported on the truckframe by hangers permitting lateral movement of such structures andaccommodating the longitudinal displacement necessary as the crossmembers I45 move through the are described by the leg members I inresponse to vertical springing movements of the truck frame. tween jawsI19 of brackets I on the truck frame by means of bolts I8I passingthrough the jaws and hangers and secured by nuts I82. The hangers aredisposed in pairs at opposite sides of the transom III in position tosupport each of the cross members I45 at each side of the truck. Thecross members have a sliding fit through the lower end of hangers I18,as at I83, and swin with the hangers as the leg members I fulcrum aboutthe relatively fixedpoints I11 in response to vertical displacement ofthe truck frame,

whereby such motion is imparted to the cross members I45 in a generallongitudinal direction. The cross members pass entirely through thebrackets I80, which are arcuately slotted as at I84, to permitof suchlongitudinal movement of 'movement of the wheels and axles.

The brackets I80 are in two parts, I and I88, separable on a horizontalline coincident with the center of the cross members I45 passingtherethrough, and are secured together by means of bolts I81 and nutsI88. By this means, the assembled U-shaped structures I40 maybe laid inthe members M5 and the members I88 then bolted in place. 1 The membersI85 are illustrated as separate from the truck frame and secured theretoby welding, as at I88; but, if found expedient, these may just as wellbe made integral with the frame.

While the brake-supporting structure has been described as supported inanti-friction rollers or hangers on the truck frame, it is to beunderstood that the mechanism might be supported in other ways notdeparting from the spirit of the invention. The supporting structure maybe carried in proper bearings on the truck frame for direct slidingengagement, if desired, or any other means permitting lateral motion butresisting braking reactions.

What is claimed is:

1.' A vehicle truck including a truck frame, wheeled axles includingjournal boxes movable laterally with respect to the truck frame, brakerigging for said truck, and means for supporting said rigging comprisingmembers pivotally supported in horizontal axes on said journal boxes andsupported on said truck frame for lateral movement relative thereto.

2. A vehicle truck including a truck frame, wheeled axles includingjournal boxes movable laterally with respect to the truck frame, brakerigging for said truck, and means for supporting said rigging comprisinggenerally U-shaped members having the legs thereof pivotally supportedon said journal boxes and cross members connecting said legs supportedon said truck for relative lateral movement. a

3. A vehicle truck including a truck frame having pedestals, wheeledaxles having journal'boxes Hangers I18 are suspended be-' disposedbetween said pedestals and movable laterally with respect to said truckframe, brake rigging for said'truck, and means for supporting said brakerigging comprising generally U-shaped structures having spacedbifurcated legs straddling the respective pedestals and pivotallysupported on said journal boxes and cross members connecting said legsand supported on said truck frame for relative lateral movement.

4. A vehicle truck'including a truck frame having side frames and aconnectingt-ransom, wheeled axles supporting said truck frame andmovable laterally relatively thereto,- journal boxes on said axles,brake rigging for said truck, and means for supporting said brakerigging comprising generally U-shaped structures having spacedbifurcated leg members straddling said side frames and pivotallyconnected with the respective journal boxes and cross members connectingsaid leg membezs and supported on said transom for lateral movementrelative tosaid truck frame.

5. A vehicle truck including a' truck frame,

wheels and axles supporting said truck frame and movable laterallyrelatively thereto, journal boxes on said axles, means for supporting abrake rigging from said truck for movement laterally with said wheelsand axles comprising generally U-shaped structures having spaced legmembers pivotally connected to said journal boxes and cross membersconnecting said leg members and supported from said truck frame forrelative lateral movement, and brake rigging supported from said crossmembers.

6. A vehicle truck including a truck frame,

wheels and axles supporting said truck frame and movable laterallyrelatively thereto, journal boxes on said axles, means for supporting abrake rigging from said truck for movement laterally with said wheelsand axles comprising generally U-shaped structures having spaced legmembers pivotally connected to said journal boxes and cross membersconnecting said leg members, roller members on said truck framesupporting said cross members for relative lateral movement, and brakerigging supported from said cross members. I I I '1. A vehicle truckincluding a truck frame, wheels and axles supporting said truck frameand movable laterally relatively thereto, journal boxes on said axles,means for supporting a brake rigging from said truck for movementlaterally with said wheels and axles comprising generally U-shapedstructures having spaced leg members supported on said journal boxes andcross members connecting said leg members, swing hanger members on saidtruck frame supporting said cross members for relative lateral movement,and brake rigging supported from said cross members.

8. A vehicle truck including a truck frame, wheels and axles supportingsaid truck frame and movable laterally relatively thereto, journal boxeson said axles, means for supporting a brake rigging from said truck formovement laterally with said wheels and axles comprising generally'U-shaped structures having spaced leg members supported on said journalboxes and cross members connecting said leg members, swing hangermembers on said truck frame supporting said cross members for relativelateral movement and longitudinal displacement, and brake riggingWIILIAMEMUSSEY.

